Improvement in boiler-feeders



@with 'ft @anni @fitta Letters Patent ivo. 65,418, ZL-ated June 4,186i'.

IMPROVEMENT IN BOILERl-FEEDERS.

@iin dnhulc ninna le in tipa itittws flzltuit :uit mailling pnt ni tigesamt.

TO ALL WIIOM IT MAY CONCERN:

Be it known that I, ADoLPlIUs F. W..Nnrivlimau, et Philadelphia, in thecounty el' Philadelphia, in the State of Pennsylvania, have invented anew and useful apparatus, the Automatic Boiler-Feeder and Alarm Device,for feeding steam boilers, and giving, if desired, alarm when the waterin the boiler evuporates to given line; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation ofthe same, reference being had to the. annexed drawings,making a part of this specification which- Figure l represents a portionof my apparatus attached to a steam boiler, in vertical section, theboiler being fed with water to a given point. I

Figure 2 representsa vertical section thereof inthe state when thefeeding of the boiler is going on.

The nature of my invention consists inthe construction and applicationof valves by means of which the pressed steam of a boiler is brought toact on a piston or alarm whistle when the water falls by evaporation tea given point, said action of steam being maintained until the water inthe boiler rises te a certain point, and is then eut olf, and thus amotive power is gained from the moment when the boiler wants feedinguntil it is suflieiently fed, and no longer, which se gained motivepower can be used to perform the work of feeding the boilerautomatically.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation. i

A represents a valve, consisting of a lloat, to which .on the lower partis attached the pipe c, and on the upper part of which is pivoted thepin e, in such a manner that c and c will play freely within the pipe D.Pipe c has an opening atfto allow steam and water to pass through. lin eis grooved along the lower part to allow thesteam to pass along itssides, except at its front partV or point, which point fits steam tightinto the opening d to prevent the escape of water. A represents a secondvalve ofthe same construction as valve A. C represents a pipe, being aprolongation of pipe B, for the purpose of having a steam whistleattached to it. D represents a piston, which is moved by the steamescaping through the valves A and A. F is the support of the lever E,with weight G attached. I is a steam pipe, leading steam to a pump-work.K represents a feed pipe for feeding the boiler. L represents a steamboiler.

The operation and use of the apparatus (see iig. I) are as follows: 'lheboiler L being lilled with water to d, water extends into pipes' Il andH, lifts the floats A and A', and these shut up the apertures at theirtops. As the water evaporates below line a, steam will enter pipe Il,and the water therein will descend, but as the opening g is closed bythe piston D, which is acting there as a slide-valve, no steam can passthrough g into pipe I until the water falls, by evaporation, below theline I, then steam will llow through pipe B. The water therein descends,the lloat A falls, the steam finds a way through pipe c, by means of theopcningf, around the float, through opening CZ, blows an alarm whistle,(it the stop-cool( /t has been opened,) lifts the piston D, which opensby this movement the aperture of pipe I, and the steam escaping throughpipe I sets the pump-work in motion to feed the boiler by means of pipeK. The apparatus is now in position, as shown in tig. 2. As soon as thewater rises in the boiler to line o, water will enter again pipe I3,lift the lloat A, which will close the aperture at d, but the piston Dbeing raised once, will be kept in its position indicated in lig. 2,until the water rises to 4line a, when water will enter also pipe Il,will 'lift the float A', which then will close the upper 'aperture andcut oilthe steam. The pump-work will new stop, the steam in pipe I, &c.,condenses, the piston D will, by means of weight G, be brought down tothe position indicated in iig. 1, and the whole apparatus will againresume the position iii-st described.

Thus it will be seen that by the applicationl et' valves A and A", andpiston D, in the manner as shown above, ul'low of steam is gained inintervals at such moments when the boiler needs feeding, and the sogained flow of steamis maintained until the boiler is fed to a givenpoint; and, furthermore, will be seen that the, in such intervals,gained flow of steam can be used to perform automatically the work offeeding the boiler, by either setting directly a Separate pump-work inmotion, or for opening a slide-valve or spigot of a hydrant to feed, bymeans of such hydrant, the boiler, which latter operation can beperformed by connecting lever E with a rod, which red is again connectedwith a slide-valve, or with the lever of a spigot of a hydrant, or themove` ment of lever E can be used to start -or stop a rotary pump bymoving the belt on or ofi` the tight or loose pulley. The single valve Ahaving an alarm whistle attached directly to pipe C, makes a veryconvenient form for a simple alarm device for a steam boiler, and insuch a case it can be screwed on to the boiler in place of the ordinarygauge-cock. Such an alarm device will have the advantage over thegauge-cock of giving automatically the alarm when the water evaporatesbelow a given point; yet this device is as easily put on the boiler asan ordinary gauge-cock7 and has the advantage over other devices in useof having the float outside of the boiler, and the valves A and A arenot liable 'of being hindered to perform their work by friction, as thevalves have suilicient space for play. The feeding apparatus is simplein its construction, which makes it durable and reliable.

What I claim as my invention, and desire to secure by Letters Patent,is`

1. The construction lof the valve A, with reference to the orifice ofpipe B, whereby the steam is allowed to flow through pipo B, for thepurpose of blowing an alarm whistle attached to pipe C, and raising thepiston D, substantially as set forth.

2. The arrangement of valve A', piston D, lever E, support F, Weight Gr,pipes H andI, substantially in the manner and for the purpose asdescribed.

A. F. W. NEYNABER. Witnesses:

WM. M. Dickson, R. P. HUNTER, A. SHOEMAKER.

